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Full Discussion: Switch disk names ?
Operating Systems AIX Switch disk names ? Post 302270931 by shockneck on Tuesday 23rd of December 2008 08:15:59 AM
Old 12-23-2008
Changing hdisk device names is tedious. I'd reconfigure disk heartbeat devices.

If you want to change hdisk names you need to rmdev -dl them. You could use dummy disks to keep cfgmgr from taking certain hdisk names (hdisk12) and then delete the dummy and the former hdisk12 to make it become hdisk12 after another rmdev command. If you delete all of the hdisk devices cfgmgr should be forced to detect devices in a serial way but not in parallel (-S option) but even then the row in which the disks are being detected might be different if signal runtime is influenced by your FC network (especially if your storage is located in different data centers).

Either way you can damage your cluster.... which HACMP version do you use?
 

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cfgmgr.auth(4)						     Kernel Interfaces Manual						    cfgmgr.auth(4)

NAME
cfgmgr.auth - Configuration management server authorization database SYNOPSIS
/etc/cfgmgr.auth DESCRIPTION
The cfgmgr.auth file lists the remote systems that are authorized to modify the local system's kernel subsystem configuration. Using the sysconfig command, system administrators can maintain the kernel subsystem configuration on local and remote hosts. To secure access to the kernel subsystem configuration, the local configuration management server (cfgmgr) answers requests from remote systems only when the remote system is listed in the cfgmgr.auth file. Each entry in the file has the following form: host-name Where host-name specifies the full domain name of the remote host. You must list each remote host on a separate line and only the first 128 characters of each line are read and processed. Lines beginning with the pound sign (#) are comments. If the cfgmgr.auth file does not exist, the configuration management server assumes no remote system administrators are allowed to config- ure, reconfigure, or unconfigure any kernel subsystem on the local host. EXAMPLES
The following shows entries in the cfgmgr.auth file on a host named buster: salmon.zk3.dec.com trout.zk3.dec.com bluefish.zk3.dec.com This cfgmgr.auth file allows system administrators on the salmon, trout, and bluefish hosts to configure, reconfigure, and unconfigure sub- systems on buster. RELATED INFORMATION
Commands: cfgmgr(8), sysconfig(8), sysconfigdb(8), kloadsrv(8) Files: /etc/sysconfigtab(4) System Administration delim off cfgmgr.auth(4)
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